7/10/2014
Multi USB/RS232/RS485/TTL Converter (SKU:TEL0070) - Robot Wiki
http://www.dfrobot.com/wiki/index.php/Multi_USB/RS232/RS485/TTL_Converter_(SKU:TEL0070)
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Multiplexer (SKU:TEL0070)
Multi USB/RS232/RS485/TTL Converter (SKU:TEL0070)
From Robot Wiki
Contents
1 Introduction
2 Power Supply
3 PIN Function Description
4 Usage Direction
5 Other Reference Connection
Introduction
Multiplexer is a multi protocol converter which is composed by multiple
interfaces for using controller communication. Multiplexer supports
conversion interfaces among USB, TTL, RS232, RS485, and allows to
have one input and multiple outputs. It's more convenient for many
kinds of controllers to communication.
Power Supply
Supply Voltage is 5V
，
and is divided into two way.
1. via Micro USB data wire.
2. Any pin 5V .
Note
：
please do not plug two or more 5V to aviod to burn the chip. And, do not connect 5V if already connected
from Micro USB.
PIN Function Description
Points to note:
1. Multiplexer board is divided into Area A and Area B. Area A includes Micro USB
、
ATTL and A232 interfaces. Area
B includes BTTL
、
B232
、
B485 interfaces. The signal can be convertered between A and B.
2. The signal in the same area can't be convertered. For example, ATTL can't be converted to A232, but it can be
convertered to B232.
3. Only one input in the same area, but it allows to have multiple outputs.For example
，
if micro USB interface in A is
input
，
multiplexer can be allowed to have 232
、
485 and TTL as outputs.
Indicator
：
POWER:power indicator
AR->BT: The interface in A as input
，
the interface in B as output
BR->AT: The interface in B as input, the interface in A as output
